Exhaust-steam trap



(No Model.)

J. HOEY.

EXHAUST STEAM TRAP.

No. 520.134.l

Patented June 16, 1885.

Niran Starts .artnr erica.

JAMES HOEY, OF BROOKLYN, NEWT YORK.

EXHAUST-STEAM TRAP.

SPECPICATION forming part of Letters Patent No. 320,134, dated fune 16, 1885.

Application lilcd April 28, ISS/5.

To all whom it may concern/f Be it known that l, Janus Honv, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in Exhaust-Steam Traps, which improvement or invention is fully set forth and illustrated in the following specification and accompanying drawings.

The object of this invention is to provide an exhaust-steam trap which shall be of simple construction, cheap, durable, and efficient in trapping the water of condensation, without itself acting materially as a condenser, and also capable of ready attachment to exhauststeam pipes, and equally easy of access to its interior should such access at any time be desirable for purposes of cleaning any oily deposit or any dust or dirt collected thereby or adherent thereto.

The invention consists of the apparatus hereinafter described, and particularly set forth in the claim.

In the accompanying drawings, Figure lis a transverse diam etrical vertical section through the apparatus, and Fig. 2 a plan of the apparatus.

In said figures the several parts are indicated by letters, as follows:

Aindicates a cylinder, open at top and closed at bottom, except at its two apertures a and bthe former for the entrance of the exhaust-v steam, the latter for the exit of the water of condensation entrapped within the apparatus. From the bottom of the cylinder A a tubular extension or inner nozzle rises, being an extension of the aperture a. Above said nozzle, and set partially within the cylinder A, is the inverted cylinder B,secured by the angle strapbraees or A-braces d to theinterior of the cylinder A. Said braces are preferably riveted to the cylinder B by rivets h, but secured to the cylinder A by bolts e and nuts g. ln the plan, Fig. 2, three of said A-braces are shown, securing the cylinders A and B together; but two, four, or more of such braces may be used, if desired. Three will, however, in most cases be amply sufficient. The bottom edge, f, of the cylinder B should preferably lap or extend below the top edge of the nozzle c a short distance. From one-eighth to one-quarter of an inch will be usually quite sufficient.

(No model.)

Should it be desired at any time for any reason to clean out the bottom of the cylinder A, by simply removing the three bolts e, the cylinder B may be removed and replaced in a very few minutes, the time required for unscrewing and. screwing up again said bolts being scarcely appreciable, practically considered.

The operation of this apparatus is so simple as scarcely to need description. The device is screwed on top of the exhaust-pipe, which is entered in the aperture a, tapped out to receive it. A waste-water pipe is tapped into the aperture I), and led off to any desirable receptacle, drain, or sewer. When the engine is in operation,the exhaust-steam rises through the nozzle c, throwing or carrying up to and against the inner dome top of the cylinder B any contained water, either condensed in the pipes or entrained with the steam, due to foaming or priming of the boiler. Said water is immediately deflected downward and falls back upon the annular bottom of the cylinder A, while the dry uncondensed steam escapes out of the trap around the cylinder B through the annular space between the cylinders B and A, the water, of course, discharging itself out of the trap through the aperture b.

It is not the object to condense any of the steam within this trap, though of course some condensation therein is unavoidable. The apparatus is intended as an efficient trap or dryplate device to retain any water entrained in the steam and let only the dry steam escape into the air, the water being led away, as hereinbefore described. Thus is prevented the wetting of the roofs of houses through which so many exhauststeam pipes are protruded in cities, which pipes, if not suitably trapped, keep such roofs constantly wet with water and spray from the steam in summer and caked with ice in winter in cold climates. This cvil in most cities amounts frequently to anuisance. Practical trial has established the thorough efficiency of this trap in perfectly protecting the roof from water and spray and in delivering above the trap only dry steam.

The cylinders B and A may be made of any suitable material ,butthey may be very cheaply and durably made of cast-iron, needing neither turning nor boring. A few rivet-holes and boltholes only need be drilled. The two holes ICO a and b, being cast in the metal, only require to be Vtapped out for their screw-threads.

It is obvious that the cylinder B, instead of having a dome-top, may be made with either a flat or conical top Without departing from the principle of my said invention. The dome, however, is preferable for strength and lightness combined and for its curve deiection. It also presents a neater mechanical appearance than said other shapes.

Having thus fully described my said improvementfas of myinvention, I claim- An exhaust-steam strap consisting of an exterior cylinder, as A, open at top and closed at bottom, except by an aperture for the entrance of steam and an aperture for the exit .the purposes set forth.

JAMES HOEY.

Witnesses:

FRANCIS l?. REILLY, WM. C. FINDLAY. 

